The massive storm that started out as Hurricane Sandy slammed into the East Coast and morphed into a huge and problematic system, putting more than 7.3 million homes and businesses in the dark and causing at least 16 deaths. Here's a snapshot of what is happening, state by state.

Photos of Hurricane Sandy flooded social media sites throughout the day Monday, with Facebook, Instagram and Twitter users in the storm's path posting dramatic photos of waves, flooding and downed trees. (Some are fake, by the way.)